CA2124183C - Active noise control of an enclosure with multiple transducers - Google Patents
Active noise control of an enclosure with multiple transducersInfo
- Publication number
- CA2124183C CA2124183C CA002124183A CA2124183A CA2124183C CA 2124183 C CA2124183 C CA 2124183C CA 002124183 A CA002124183 A CA 002124183A CA 2124183 A CA2124183 A CA 2124183A CA 2124183 C CA2124183 C CA 2124183C
- Authority
- CA
- Canada
- Prior art keywords
- noise
- enclosure
- noise source
- speaker
- openings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
- G10K11/17833—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/105—Appliances, e.g. washing machines or dishwashers
- G10K2210/1054—Refrigerators
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3216—Cancellation means disposed in the vicinity of the source
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Exhaust Silencers (AREA)
- Noise Elimination (AREA)
- Amplifiers (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1991/008772 WO1993011529A1 (en) | 1991-12-02 | 1991-12-02 | Active noise control of an enclosure with multiple transducers |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2124183A1 CA2124183A1 (en) | 1993-06-10 |
CA2124183C true CA2124183C (en) | 1996-08-27 |
Family
ID=22225986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002124183A Expired - Fee Related CA2124183C (en) | 1991-12-02 | 1991-12-02 | Active noise control of an enclosure with multiple transducers |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0615648B1 (ja) |
JP (1) | JPH07504991A (ja) |
AT (1) | ATE179273T1 (ja) |
CA (1) | CA2124183C (ja) |
DE (1) | DE69131170T2 (ja) |
DK (1) | DK0615648T3 (ja) |
WO (1) | WO1993011529A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0645004A4 (en) * | 1992-06-10 | 1996-05-08 | Noise Cancellation Tech | HOUSING WITH ACTIVE ACOUSTIC CONTROL. |
US8054984B2 (en) | 2006-10-16 | 2011-11-08 | Bsh Home Appliances Corporation | Sound altering apparatus |
CA2606442A1 (en) * | 2006-10-16 | 2008-04-16 | Bsh Home Appliances Corporation | Sound altering apparatus |
DE102008038751B3 (de) * | 2008-08-12 | 2010-04-15 | Fresenius Medical Care Deutschland Gmbh | Umkehrosmoseanlage mit einer Vorrichtung zur Geräuschminderung sowie Verfahren zur Geräuschminderung einer Umkehrosmoseanlage |
DE102009024343A1 (de) | 2009-06-09 | 2010-12-16 | Rohde & Schwarz Gmbh & Co. Kg | Elektronisches Gerät mit Geräuschunterdrückungssystem |
CN105139861B (zh) * | 2015-08-24 | 2018-08-17 | 昆明科林科技工程有限公司 | 一种用于工业噪声治理的有源降噪方法及装置 |
US10957300B2 (en) | 2016-12-13 | 2021-03-23 | Halliburton Energy Services, Inc. | Reducing far-field noise produced by well operations |
US10789936B2 (en) | 2016-12-29 | 2020-09-29 | Halliburton Energy Services, Inc. | Active noise control for hydraulic fracturing equipment |
WO2022225495A1 (en) * | 2021-04-21 | 2022-10-27 | Sariaslan Esra | Method for reducing noise in machines |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4665549A (en) * | 1985-12-18 | 1987-05-12 | Nelson Industries Inc. | Hybrid active silencer |
GB2204916B (en) * | 1987-05-19 | 1991-10-16 | British Gas Plc | A silencer |
DE68911112T2 (de) * | 1988-02-19 | 1994-05-26 | Noise Cancellation Tech | Abgasschalldämpfer-anlage für brennkraftmaschnine. |
JPH083395B2 (ja) * | 1988-09-30 | 1996-01-17 | 株式会社東芝 | 冷却装置の消音装置 |
-
1991
- 1991-12-02 DK DK92905531T patent/DK0615648T3/da active
- 1991-12-02 AT AT92905531T patent/ATE179273T1/de not_active IP Right Cessation
- 1991-12-02 CA CA002124183A patent/CA2124183C/en not_active Expired - Fee Related
- 1991-12-02 EP EP92905531A patent/EP0615648B1/en not_active Expired - Lifetime
- 1991-12-02 DE DE69131170T patent/DE69131170T2/de not_active Expired - Fee Related
- 1991-12-02 WO PCT/US1991/008772 patent/WO1993011529A1/en active IP Right Grant
- 1991-12-02 JP JP4505211A patent/JPH07504991A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH07504991A (ja) | 1995-06-01 |
CA2124183A1 (en) | 1993-06-10 |
DE69131170T2 (de) | 1999-11-18 |
DK0615648T3 (da) | 1999-11-01 |
EP0615648A1 (en) | 1994-09-21 |
EP0615648B1 (en) | 1999-04-21 |
WO1993011529A1 (en) | 1993-06-10 |
ATE179273T1 (de) | 1999-05-15 |
EP0615648A4 (en) | 1995-04-19 |
DE69131170D1 (de) | 1999-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |